This time of year
always feels melancholy to me, blight or no blight. We're
halfway through our frost-free period, and signs of autumn slowly
build. This year, the autumn feeling is coming faster, with
a low of 52 last week sending me hunting for a long-sleeved
shirt. Luckily, I have a sure cure for end-of-summer
melancholy --- pondering!
Even though I'm
supposed to be letting
the jewelweed ferment and gley my pond for at least two
weeks before adding anything that could boost oxygen content of
the water, I couldn't resist tossing in a gallon of pond inoculant
to get things moving. I aimed for transporting a few
clusters of parrots feather and some duckweed out of my tiny pond,
and ended up bringing along some water beetles and water striders
for the ride. Hopefully I got lots of even smaller critters,
too.
I couldn't resist
breaking off a runner from my lotus while I was at it. The
runner had multiple rooted points, and I pushed each into the mud
at the bottom of my sky pond with a long pole.
Something about these
various inoculants triggered the local dragonfly population, and
nearly immediately, half a dozen moved in. The most common
species (I'm thinking a Common Whitetail) was extremely
territorial, with up to five individuals chasing each other so
busily that no one got to spend much time at the pond. But
two smaller species slipped past the Whitetails' radar and hung
out on the lotus pads.
In the meantime, the
pond continues to be a bubbling cauldron of life, quite
literally. Pockets of gas continue to drift up from the fermenting
jewelweed, leaving an oily skim on the water surface. Now I
know why I sometimes see these oil-slicks in wild locations where
I can't imagine human impact has dropped anything in the water!
(And is it possible this oiliness is also why fermenting organic
matter seals a pond?)
Another odd
observation pertains to color. After the rain filled my sky
pond up, the contents suddenly turned reddish, and even though it
seems awfully coincidental that the roof feeding the pond is
glazed red, I can't imagine that so much pigment could be flaking
off a year after application. Ideas?
Of course, I know
you're probably far less interested in all of these natural
observations, and more interested in whether the sky pond is doing
its job. On Friday, as Kayla and I peered at my little pond,
she mentioned that she was able to walk across the ground above it
for the first time ever --- the swamp is drying up! I'd been
a bit afraid the soggy ground would just move to the downstream
end of the pond, but that doesn't seem to be the case either.
On the other hand, I suspect water levels in my little earth pond
are going to vacillate with the seasons. After I
measured the water depth at 13.25 inches Wednesday, we got
more rain in the afternoon that raised the pond water up another
couple of inches. And, since then, the pond level has been
slowly dropping, reaching 13.5 inches by Saturday morning.
I'll keep you posted on water levels (and far more than you
probably want to know about other aspects of the pond) as my
experiment progresses.
Iron oxide from red clay soil?